Portable water purifier



July 29, 1952 L.. w. ROGERS 2,604,991

PORTABLE WATER PURIFIE'R Filed nec. 5, 195o I /0 I4 ""mv''i; "mm" 23 23 HYUROGEN ZEOLITE JNVENTOR. mm nl, @QQERLE Patented July 29, 1952 y Loda Rogers, West Lafayette, Ind.' l* f u l: u application Deeember 5, 195o, seriaiNe; 199,2? 61 A u .g z l. A'The present invention relates to ,ai device for rendering sea water or`other` impurel water drinkable and has special reference to a'portable co1- lapsi'ble" unit for this purpose. Afprimary object of the presentinvention is the" provisionof a device of thechara'cter described which willu be minexpensive to manufactura Another object of'the present invention is the provision of av portablej water purifyingunit which is collapsible when Anot infuse'. jv A A still furtherobject' of the present" invention is the provision of a portable water purifying device with changeable iiltering units. f A still further object of the present invention is the provision of a portable water purifying device which will remove mud, silt and chemicals from-'impure' water. u

A still further object of the present invention is the provision of a water purifying device which will not corrode or be attacked by acids, chemicals,"etc.'r and one that may easily be cleaned. Qtherand further objectsof the present invention will appearin the following specification and inthe drawing, wherein: l VFigure 1 is 'a' front'elevational view of they device showing it in its open position.

Figure 2 1sa-vertical cross sectional view device taken online 2'2 of Figi-ure 1.

of the Figure 3 is an enlarged verticalcross sectional view of the removable filter unit'which is placed in the upper partof vthe device, a portion being shown broken.

Figure 4 is a vertical cross sectional view of an alternate upper container-'which is a ltering device. p i Heretofore there have been quite a fewdevices proposed to effectively filter and purify water, both fresh and salt. but all of these devices to date have had disadvantages, such as bulkiness. expense, length of time required to purify the water, failure to effectively purify it, and devices that are subject to corrosion.

Referring to the drawing in detail numeral I represents the lower or storage container of the device in which pure liquid drops after purication. Telescopically mounted in relation to the storage container I0 is an upper filter container II. The upper filter container is provided with a lid I2 having a bracket I3 mounted thereon or integral therewith, said bracket functioning as a handle for the unit.

Pivotally mounted on the storage container I0 is a bail I4 that serves as a handle and as a locking means.v When the bail I4 is slipped over bracket I3 as shown in Figure 1, the storage con- Vzc'leims. (c1. 21o-122.2) e

tainer I0 is locked vto the upper filter container II, and the two containers can be carried and used in this position.' Y

The upper filter `container II has a. centrally threadedopening I5 in its bottom wall, and this opening is adapted to lreceive 'the threaded portion I6 of a filter cartridgefllpthe cartridge having a lid I8 Yt0 Which is attahd a.' lolig'itudinal member |19, having a looped end 20thatforms a'handle.. Y The upperfilter container I'I is held'inf its ex-V tended position as shown in Figuresl'l and -2 by means of spring y'arr'ns 2 l having one @end of sub' stantially V-'shaped congulationgthat,engages a groove Vor recess22 thatis provided in the wall of the .container adjacent the bottomof saide'ontainer. The'spring varms 2' I` are secured to the wall of the container I0 by 'nyfsuitablameans such as rivets 23,' welding etc',` j Attached tothe outside1 ofthe container` I Il by any suitable means'are storagechambers'u that hold extra filter cartridgesl Ilyand containers for ltablets and other types of supplies',v said Y tablets being Halazone and aluminum sulfate.V y

Filter cartridge YIf( as shown'in Figure 3- has mounted in the Yupper'portion a `screen 25,' a coarse grain heavy d uty filter paper' 2 6 and another screen 2'Iall being supported by'a flange, the filter 26 being interposed between screens 25 and.21.' In vthe lowerportion-ofthe iilter cartridge is another screen 28. that is of a very fine mesh. Between the screens 21 and 28, the container is iilled with activated charcoal 23.*

InFigure elf-*there is shown an alternate type of upper filter unit 30 which replaces ther upper container `I I when sea water is'to 'be purified. Unit 30 has-a cap 3| ttingf'ov'er the mouth 32 of the unit. A screen 33 is placed in the mouth 32 and it rests on a flange or shoulder 34 of the top portion 35. The top portion 35 is provided With internal threads 36 that engage threads 31 on the upper end of the container or unit 30.

. Approximately midway on the inner peripheral wall of the unit or container 30 there is provided a ange 38 that supports a perforated disc 39. 'I'he bottom 40 of the unit or container 30 is provided with a plurality of perforations 4I, the outer wall of the container adjacent the bottom being provided with a recess or groove 42 that is identical with the groove 22 in the container I I. and it is engaged by the V-shaped ends of the spring arms 2|. Between the top portion 35 and the perforated disc 39 there is provided within this area a. quantity of hydrogen zeolite, and below the perforated disc 39 there 1s provided a quantity of an anion adsorber. The lower portion of container I0 is provided with a spout 43 providing a means for removing puried water from the container.

In operation, the device is used as follows:

If sea Water is to be puried, unit 30 is placed in position so that spring arms 2l engage groove 42 to support the unit in its extended position. The cap 3| is then removed and sea water poured into thejmouth or-'opening 32Where ,the larger impurities are filtered out by screen 33. Thesalt water then passes through the hydrogen zeolite,

removing calcium, magnesium and sodium cat-- ions, and leaving H2003, I-IzSOii` and HCl to drip through perforated disc 39 which'isfthe pref requisite for the anion adsorber which taleskout anions when they are in the acid form.4 After the liquid passes through the anion adsorber-"it drips through the perforations 4l in bottom di) and into the lower container l0 of the device.` The Wateris now puriiied approximately the sameas iistillerl"water". It is freeof sulphates, lchlorides', calcium and magnesium and is substantially neutral as carbon dioxide` isreleasedthrough the s'pa'c'elii between the upper end or container to and the' vlower end i of. container 49j," the, 513342344 armson the inner wall of said bottom vessel, said arms engaging the peripheral groove in the upper vessel, abail on said lower vessel, said bail engaging with the handle on said cover to hold said cover on said top vessel and to act as Y a handle* said bottom vessel being of greater kfiiteifu'nit liis 'use-d with nitercartridgej l1-.in

the position, as shown in FigureZ. Thef'water to be purified is' poured: inter` openingv 45 in; the lid lfwheie, screiiflters out Athe larger particles offffrei'gn matteriHjWhen the lter unit' Il islffull", cover. l2 isfrem'oved and one aluminum tablet and* one" Haiagzcne jtabiei are added,v andthewatei" is stirred 'for 3() seconds; Thentlie mi'irture is allowed t'of standA for onef half hour. 1-I`andle@211` istheA lifted up, remov ing the cover 1 8 filte'if'c'artridge il.. Water will then lter tlii'o'iigfi cartridge Il, and v pass into the bott-ombontair'ier l0'. This water is'now pure and ready to andH it vfrfe'le'as'e'd from container lil through drain spout`43 vThese lter cartridges arci,'discarded when theyhave lost theirgeffectivene'ss and new ones substituted.

lroni.v theabove description it can) be' seen that I- have provided.v a 'water purifying device in which one contairiencan'be Yhoused within the other container Vthus.providing? a "compact portable device. YIjruo'arl lalsoioelsee'rrtl'iat I have provided means on thedeviee wherebyloontaineis containingv si`1'1 ;y1`3 li es-A be carried, d the means beingprovided v vitlfi hinged covers.

Il am awarethat changes may. be madel and details of construction variedfwithout departing from the Yprinciples.A oi invention Ulidiameter than said top vessel, and having an in turned flange on its upper `peripheryycovering saidsprig a rns' and creating a close fit between said top vessel' and said bottom vessel.V

2. The structureas's'et for-th in claiml; said iiltering unit having al lid. a rod and afhandle' onsaid lid, a screen beneath said lid, filter paper beneath' said screen',y a second screen beneath said filter paper, activatedcharcoal below said second screen, a third screen at the bottom of tainer havingla threadedV aperture inv its bottom said unit, threads on the exterior o f thelower portion of 'said filtering Init; said upper cnwall for engagement with the threads, o 'the filtering unit'.

nonavvinocf'nns' "REFERENCES CITED rlhe following references are V ofi-recording'the file of this patent: g 1 Y UNITED STATESPATENT'S V Number FOREIGN PATENTS Number` Country Date' Y V3,138 Great Britain ;1895 17,363 Germany Mar. 10, 1881 330,000 

